Implement 'gt mq integration create <epic>' command to create integration
branches for batch work on epics. The command:
1. Verifies the epic exists in beads
2. Creates branch integration/<epic-id> from origin/main
3. Pushes the branch to origin
4. Stores integration branch info in the epic's metadata
Also adds helper methods to git package:
- CreateBranchFrom: create branch from specific ref
- BranchExists: check if local branch exists
- RemoteBranchExists: check if branch exists on remote
Future MRs for the epic's children can target the integration branch
with: gt mq submit --epic <epic-id>
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Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
Add git helper functions for merge request conflict checking:
- FetchBranch(remote, branch): fetch a specific branch from remote
- CheckConflicts(source, target): test merge to detect conflicts
- Returns list of conflicting files without modifying working directory
- runMergeCheck helper to capture stdout (where CONFLICT appears)
Tests cover clean merges, conflicting merges, and working dir cleanup.
Closes gt-3x1.2
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Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
- gt crew at: auto-detect crew from cwd, run gt prime after launch
- Polecats now use git worktrees from refinery (faster than clones)
- Updated architecture.md for two-tier beads mail model
- Town beads (gm-*) for Mayor mail/coordination
- Rig .beads/ symlinks to refinery/rig/.beads
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Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
